68 A SEARCH IN SECRET EGYPT
crickets had chirped a good deal upon my entry into the Grand Gallery, but they had soon ceased. All that was over now, unbroken silence held the whole Pyramid as in a thrall. There was naught of a physical nature which could possibly injure one here, and yet—a vague uneasiness, a feeling that invisible eyes were watching me, recurred for the second time. The place possessed a dream-like mysteriousness, a ghostly unreality. . . .
There are vibrations of force, sound and light which are beyond our normal range of detection. Laughing song and serious speech flash across the world to waiting wireless listeners, but they could never detect them were not their receiving sets properly tuned. I had now brought myself out of the state of mere receptive waiting into a forcefully concentrated condition of mind which focalized the whole of its attention upon an effort to pierce the black silence which surrounded it. If, in the result, my faculty of awareness was temporarily heightened to an abnormal extent by the intense inward concentration, who shall say that it is impossible I began to detect the presence of invisible forces?
I know only that as I "tuned-in" by a method of interiorized attention which I had learnt long before this second visit to Egypt, I became aware that hostile forces had invaded the chamber. There was something abroad which I sensed as evil, dangerous. A nameless dread flickered into my heart and returned again and again soon after it was driven away. I still following my method of intense, single-pointed, inward-turned concentration, feeling followed its usual trend and changed into vision. Shadows began to flit to and fro in the shadowless room; gradually these took more definite shape, and malevolent countenances appeared suddenly quite close to my own face. Sinister images rose plainly before my mind's eye. Then a dark apparition advanced, looked at me with fixed sinister regard and raised its hands in a gesture of menace, as though seeking to inspire me with awe. Age-old spirits seemed to have crept out of the neighbouring necropolis, a necropolis so old that mummies had crumbled away inside their stone sarcophagi; the shades that clung to them made their unwelcome